Well, they are definitely better than the old Halogens in terms of brightness and throw, also whiter. But one of them on my Wife's car needed to be replaced a few weeks back which means that a little over a year, so lifespan might be an issue. But they are the old Nightbreakers, not the newer Plus version, so will have to see how the old ones in my car fair and then the new Plus version in my Wife's car...